CVE-2017-0037

Microsoft Edge and Internet Explorer: Type Confusion

As of , CVE-2017-0037 in Microsoft Edge and Internet Explorer is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 28 March 2022
US federal deadline
18 April 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.80Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.96 on 28 March 2022EPSS on the day CISA listed it.
Public exploit
3 Exploit-DB entries (2 verified)
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

Microsoft Edge and Internet Explorer have a type confusion vulnerability in mshtml.dll, which allows remote code execution.

CISA's description

Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.

The CVE record's description, from microsoft

CVE published
26 February 2017
Assigned by
microsoft
CVSS
8.1 High (CVSS 3.1, from CISA-ADP)
CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CWE-704
Incorrect Type Conversion or Cast
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. Exploit-DB published an exploit (EDB-ID 41454).
  2. The CVE record was published.
  3. Exploit-DB published an exploit (EDB-ID 42354).
  4. Exploit-DB published an exploit (EDB-ID 43125).
  5. CISA added it to its list of exploited vulnerabilities.
  6. The US federal deadline to fix it.

Public exploits

Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.

Edge and Internet Explorer: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2020-0878Memory CorruptionMicrosoft Edge and Internet ExplorerPatch this weekRansomware use0.03

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